Marinate shrimp in about ¼ to ½ cup olive oil, 1 teaspoon sugar, 2 teaspoons sea salt and freshly grated pepper to taste. Right before guests arrive, heat up about ¼ cup olive oil in a skillet over medium heat for 2-3 minutes, then add in the red pepper to the oil for about an additional minute. Add 1-3 cloves of roasted garlic to the oil. Reduce heat to medium low and add the shrimp. Sauté, but do not brown the shrimp, for about 3 -4 minutes each side. Add additional red pepper flakes to taste, and serve either hot or warm.